There's several things you can learn about your swing by examining your followthrough. First, your followthrough should be a mirror image of your backswing. After you hit a shot hold your finish position and check to see where your belly button is facing. It should be facing towards your target. You can backtrack your swing to see if your followthrough was in fact a mirror image of your backswing.
For right-handed golfers, if your belly button is facing right of your target, then your shot would most likely end up to the right of your target. You can confirm this by back tracking the swing, back to the top of your swing. You may find a couple of reasons for hitting the shot to the right. You may have aimed right, which you can check by looking at your alignment from the address position. If you were aimed properly and the shot went straight right, you probably pushed the shot by getting your weight ahead of the ball, thereby blocking the shot, causing the club to arrive late.
If your belly button is facing to the left of your target you probably either pulled the shot or sliced it, depending on whether the face of the club was open or closed at impact. Again, trace back the swing from the followthrough back to the top of your swing and check to see if your aim was correct. If your aim was correct, and you pulled or sliced the shot, your shoulders, arms and hands probably swung the club out and around, due to a number of things. Looking at your followthrough and tracing it back will help you discover where your problems lie. Remember, the followthrough is a mirror image of the backswing. If yours isn't and you're confident that your aim and alignment is sound, I would look to see if your backswing and shoulder turn is adequate. Your shoulders should always out turn your lower body turn.
Mulligan's Corner: Check out Cypress Head in Port Orange. They have an after 2 p.m. Twi-Lite rate of $27 through April 30. Also, their range is lighted and open until 9 p.m. Call (386) 756-5449.
Sal Martignetti is an independent golf coach and can be reached at firstname.lastname@example.org or by calling (603) 986-3376. His free e-book is available at elusivegolfswing.weebly.com.